Hitech Instruments - A manufacturer of gas analysers, gas measurement and monitors and gas detection equipment based in the UK with worldwide sales.
https://www.mtl-inst.com/mtl_group/about_mtl_group/hitech_instruments/

Measurement Devices Ltd - Measurement Devices are a world leader in laser measurement technology and positioning and navigation systems.
http://www.renishaw.com/en/25585.aspx